CN1875515A - One piece bipolar plate with spring seals - Google Patents
One piece bipolar plate with spring seals Download PDFInfo
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- CN1875515A CN1875515A CNA2004800327272A CN200480032727A CN1875515A CN 1875515 A CN1875515 A CN 1875515A CN A2004800327272 A CNA2004800327272 A CN A2004800327272A CN 200480032727 A CN200480032727 A CN 200480032727A CN 1875515 A CN1875515 A CN 1875515A
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- seal
- electrode assembly
- fluid
- membrane electrode
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0247—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form
- H01M8/0254—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form corrugated or undulated
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
- H01M8/0263—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant having meandering or serpentine paths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0267—Collectors; Separators, e.g. bipolar separators; Interconnectors having heating or cooling means, e.g. heaters or coolant flow channels
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
- H01M8/242—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes comprising framed electrodes or intermediary frame-like gaskets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/2483—Details of groupings of fuel cells characterised by internal manifolds
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0206—Metals or alloys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0223—Composites
- H01M8/0228—Composites in the form of layered or coated products
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
A PEM fuel cell includes a cathode plate for directing a first fluid along a surface thereof. An anode plate directs a second fluid along a surface thereof. An MEA is oriented in a first direction. The MEA includes an anode face opposing the anode plate and a cathode face opposing the cathode plate. A plate margin includes first and second header apertures oriented in a second direction perpendicular to the first direction. A first seal is disposed between the anode plate and the MEA. The first seal defines a first fluid communication path between the first header aperture and the anode plate. A second seal is disposed between the cathode plate and the MEA. The second seal defines a second fluid communication path between the second header aperture and the cathode plate. The first and second seals allow the first and second fluid to flow through respective passages thereon in a direction parallel the first direction.
Description
Technical field
The present invention relates to Proton Exchange Membrane Fuel Cells, and more specifically, the present invention relates to included seal configuration in a kind of fuel cell pack.
Background technology
Fuel cell is used as power supply in multiple application.For example fuel cell has been suggested the power equipment that is used for electric vehicle to replace internal combustion engine.In proton exchange membrane (PEM) type fuel cell, anode and oxygen that hydrogen is provided to fuel cell are provided to negative electrode as oxidant.Proton Exchange Membrane Fuel Cells comprises membrane electrode assembly (MEA), and described membrane electrode assembly comprises the non-conductive solid polymer dielectric film of thin proton conduction, and described dielectric film has anode catalyst and have cathod catalyst on opposite face on the one side.Membrane electrode assembly is sandwiched between a pair of atresia conducting element or the plate, described element or plate (1) be as the current collector of anode and negative electrode, and (2) comprise the suitable passage and/or the opening that wherein form and are distributed on the surface of corresponding anode and cathod catalyst with the gas reactant with fuel cell.
Term " fuel cell " is used in reference to for single battery or a plurality of battery (heap) according to linguistic context usually.A plurality of monocells are combined together to form fuel cell pack usually and arrange in the mode of electricity series connection usually.Each battery in the fuel cell pack comprises foregoing membrane electrode assembly (MEA), and each this membrane electrode assembly provides its voltage increment.One group of adjacent cell in the fuel cell pack is known as battery pack (cluster).
In Proton Exchange Membrane Fuel Cells, hydrogen (H
2) be that anode reactant (being fuel) and oxygen are cathode reactant (being oxidant).Oxygen can be pure oxygen form (O
2) or air (O
2And N
2Mixture).Solid polymer electrolyte is made by ion exchange resin such as perfluorinated sulfonic acid usually.Anode/cathode generally includes tiny catalyst granules, and described catalyst granules is supported on usually on the carbon granule and with proton conductive resin and mixes.The noble metal granule that catalyst granules is normally more expensive.Therefore, the manufacturing of these membrane electrode assemblies relatively costly and need specified conditions, described condition to comprise suitable water management and humidifying and to the control of catalyst contamination component such as carbon monoxide (CO) so that carry out valid function.
The conductive plate of clamping membrane electrode assembly can comprise the groove array in its surface, and described groove array limits reactant flow-fields therefore so that the gas reactant of fuel cell (being hydrogen and the oxygen that exists with air form) is assigned on the surface of corresponding negative electrode and anode.These reactant flow-fields therefore generally include a plurality of ribs district (lands), many runners that described rib area definition goes out therebetween, and gas reactant flows through described runner from the supply collector that is positioned at runner one end and arrives the discharge collector that is positioned at the runner opposite end.
Usually, non-conducting pad or seal provide sealing and electric insulation between the polylith plate of fuel cell pack.In addition, seal provides from the flow path of supply collector to the Surface runoff of corresponding anode and cathod catalyst for gas reactant.As usual, seal comprises molded compliant material such as rubber.Because seal is made by submissive material and is had narrower wall thickness, therefore may be difficult to control them in the packaging technology process.In addition, before installation, must consider the curing time of molded seals.When layout was used for the eyelet of stream on the molded rubber seal, described molded rubber seal also had difficulties.
Summary of the invention
A proton exchanging film fuel battery according to the present invention comprises and is used to guide the minus plate of first fluid along its Surface runoff.Positive plate guides second fluid along its Surface runoff.Membrane electrode assembly is orientated along first direction.Described membrane electrode assembly comprises anode surface relative with described positive plate and the cathode plane relative with described minus plate.Panel edges comprises first header aperture and second header aperture that is orientated along the second direction perpendicular to described first direction.First seal is set between described positive plate and the described membrane electrode assembly.Described first seal limits the first fluid communication path between described first header aperture and the described positive plate.Second seal is set between described minus plate and the described membrane electrode assembly.Described second seal limits second fluid communication path between described second header aperture and the described minus plate.Described first seal and described second seal allow described first fluid and described second fluid to flow through respective via on it along the direction that is parallel to described first direction.
Provide a kind of according to the seal arrangement that is used to guide fluid to flow to suitable membrane electrode assembly face of the present invention from the collector of Proton Exchange Membrane Fuel Cells.Described membrane electrode assembly is limited between positive plate and the minus plate.Described seal arrangement comprises first seal that is arranged between described positive plate and the described membrane electrode assembly.Described first seal limits first fluid supply orifice in the described collector and the first fluid communication path between the described positive plate.Second seal is set between described minus plate and the described membrane electrode assembly.Described second seal limits second fluid feed hole in the described collector and second fluid communication path between the described minus plate.Described first seal and described second seal allow described first fluid and described second fluid to flow through respective via on it along the direction that is parallel to described membrane electrode assembly.
Proton Exchange Membrane Fuel Cells according to the present invention comprises the demarcation strip that is used to guide first fluid to flow and guide second fluid to flow along its opposing second surface along its first surface.First membrane electrode assembly is orientated along first direction.Described first membrane electrode assembly comprises the anode surface relative with the described first surface of described demarcation strip.Panel edges comprises first header aperture that is orientated along second direction, and described second direction is perpendicular to described first direction.First seal is set between described demarcation strip and described first membrane electrode assembly, and described first seal limits the first fluid communication path between the described first surface of described first header aperture and described demarcation strip.The direction that described first seal allows described first fluid edge to be parallel to described first direction flows through path wherein.
The method of the seal that a kind of manufacturing implements with fuel cell pack according to the present invention is provided.The metal sheet that limits the plane is provided.The hole is along the pre-position that is disposed in perpendicular to the first direction on described plane on the described metal sheet.The described metal sheet of part produces skew, and the described hole of the stream of the reaction-ure fluid by limiting described fuel cell pack manifests path thus.The orientation of described path is parallel to described plane.
From the detailed description provided hereinafter with applicable other field of easy to understand the present invention.Should be appreciated that,, only be intended to be used for illustration purpose and be not intended to limit the scope of the invention although detailed description and instantiation show the preferred embodiments of the present invention.
Description of drawings
From following detailed and accompanying drawing, will more fully understand the present invention, in described accompanying drawing:
Fig. 1 is the isometric exploded view that comprises the fuel cell of a pair of complementary spring seals in the pem fuel cell stack;
Fig. 2 is along the cutaway view of the pem fuel cell stack of Fig. 1 center line 2-2 intercepting, there is shown the anode port;
Fig. 3 is the stereogram that is used for the typical spring seals that is communicated with the positive plate of Proton Exchange Membrane Fuel Cells;
Fig. 3 a is the detailed view of regional 3a among Fig. 3;
Fig. 4 is along the cutaway view of the pem fuel cell stack of Fig. 1 center line 4-4 intercepting, there is shown the negative electrode port; With
Fig. 5 is along the cutaway view of the pem fuel cell stack of Fig. 1 center line 5-5 intercepting, there is shown the cooling port.
Embodiment
Following description of preferred embodiments only is exemplary in essence and never is intended to limit the present invention and application or use.
Fig. 1 schematically shows the part pem fuel cell stack 10 of (MEAs) 12 that have membrane electrode assembly, and every side of described membrane electrode assembly is subjected to the restriction of complementary spring seals or plate 16a and 16c.Should be appreciated that the description of carrying out in conjunction with Fig. 1 shows single fuel cell, the part of the multi-layer fuel cell heap that described single fuel cell also stacks.It is adjacent with demarcation strip or positive plate 20 that spring seals 16a is arranged.Spring seals 16c is by similarly layout and demarcation strip or minus plate 22 are adjacent.As being described ground, spring seals 16a will (be H from the fuel of positive plate 20
2) be assigned on the reaction surface of membrane electrode assembly 12.Spring seals 16c will (be O from the oxidant gas of minus plate 22
2) be assigned on the reaction surface of membrane electrode assembly 12.Each membrane electrode assembly 12 comprises the conductive plate 26 of the gas permeable of porous, and described plate is pressed against on the electrode surface of membrane electrode assembly 12 and as the primary current collector of electrode.The coldplate 30 of a pair of adjacent setting is disposed on first side of positive plate 20.
Oxidant gas such as oxygen or air are provided to the surface of the minus plate 22 of fuel cell pack 10.Can by storage tank (not shown) supply oxygen or air or preferably can remove oxygen tank and can with from the air supply of environment to minus plate 22.Similarly, fuel such as hydrogen are provided to the surface of the positive plate 20 of fuel cell pack 10.Equally can be by storage tank (not shown) supply of hydrogen, or another kind of optional mode is to be produced the reformer supply of hydrogen of hydrogen by methyl alcohol or liquid hydrocarbon (for example gasoline) catalysis.Also be the H of membrane electrode assembly 12
2And O
2Air side is provided with the offtake piping system (not shown) to remove poor H from anode 20
2Anodic gas and from negative electrode 22, remove poor O
2Cathode gas.Similarly, ooling channel system (not shown) is set as required liquid coolant is supplied to or discharges positive plate 20 and minus plate 22.
Then, antianode flow field 40 and cathode flow field 42 are explained in more detail referring to Fig. 1 and further referring to Fig. 2 to Fig. 4.Should be appreciated that for purposes of illustration additional cathode plates 22 shown in Figure 1, relevant membrane electrode assembly 12 and spring seals group 16a, 16c have been added among Fig. 2, Fig. 4 and Fig. 5.Form positive plate 20 and minus plate 22 so that the geometric configuration in flow field 40,42 forms functional serpentine flow field on first side of described positive plate and minus plate.More specifically, form positive plate 20 and minus plate 22 so that the reactant gas flow fields that is characterised in that a plurality of ribs district 50,52 that limits many runners is provided, reactant gas flow to the exit plate edge 58 of fuel cell pack by described runner from the inlet plate margin 56 of fuel cell pack 10.The flow direction of passing every positive plate 20 and minus plate 22 is generally from inlet plate margin 56 and flow to exit plate edge 58 by corresponding flow field 40,42.
Form a plurality of supply header aperture in position near the outer rim of inlet plate margin 56.Similarly, form a plurality of discharge header aperture in position near the outer rim at exit plate edge 58.More specifically, be transmitted in fuel (H on supply header aperture 60 positive plates 20
2) it is left by runner 40 and by discharging header aperture 70.Supply header aperture 62 transmits oxidant (O on minus plate 22
2) make it pass through runner 42 and discharge by discharging header aperture 72.Finally, supply header aperture 64 transmits cooling agent and cooling agent as required and discharges fuel cell pack discharging header aperture 74 places on the certain surface of positive plate 20 and minus plate 22.Should be appreciated that and in fuel cell pack, to adopt spring seals 16 with the uncolled demarcation strip of the monolithic that is arranged between the corresponding membrane electrode assembly or bipolar plates.Oxidant on the bipolar plates carrying first surface and the fuel on the opposing second surface.In this manner, fuel cell pack can be configured to have and be positioned at the desired location place as the un-cooled plates every or every the 3rd battery.
Referring to institute's drawings attached, will be described spring seals 16a, 16c in more detail.Spring seals 16a, 16c provide necessary path for the reactant gas from the supply header aperture 60,62 of inlet plate margin 56 is connected with the respective surfaces of positive plate 20 and minus plate 22.Therefore, complementary spring seals 16a, 16c are mirror image each other and have as required the particular port of arranging simultaneously. Spring seals 16a, 16c are preferably made by stamped metal sheets such as stainless steel.In a kind of method for optimizing, metal sheet is carried out punching press to form the hole in the pre-position.Described plate produces lateral shift subsequently so that the hole forms the path that is parallel to membrane electrode assembly 12 in the specific region.Be coated with elastomeric material on each spring seals 16a, 16c and provide compliance simultaneously to increase the sealing capacity.Person of skill in the art will appreciate that and to adopt other optional material to reach similar effect simultaneously.The result is, latch plate 16a, 16c have enough rigidity and the degree of depth collector part 56,58 with supporting fuel battery pile 10, also has submissive outer surface simultaneously to form seal extending the place, end.
Specifically referring to Fig. 1 to Fig. 3 a, with in more detail to being described by the fluid port that spring seals 16a arrives positive plate 20 from supply header aperture 60.Fuel flows through supply header aperture 60 along the fluid communication path shown in the arrow F among Fig. 2.Fluid communication path is limited by latch plate 16a, guides between positive plate 20 and membrane electrode assembly 12 thus and flows.In this manner, fuel can be followed the snakelike flow path 40 that is limited by every positive plate 20 and flow, and reacts until it with membrane electrode assembly 12 simultaneously to be transferred into the port 70 of discharging collector 58.As shown in the figure, be disposed among the every latch plate 16a and between lateral shift planar section 81, arrive required positive plate 20 at the path 80 of key position setting so that fuel can flow through collector part 56.
Continuation is referring to Fig. 1 and further referring to Fig. 4, with in more detail to being described by the fluid port that spring seals 16c arrives minus plate 22 from supply header aperture 62.Oxidant flows through supply header aperture 62 along the fluid communication path shown in the arrow O.Fluid communication path is limited by latch plate 16c, guides between minus plate 22 and membrane electrode assembly 12 thus and flows.In this manner, oxidant can be followed the snakelike flow path 42 that is limited by every minus plate 22 and flow, and reacts until it with membrane electrode assembly 12 simultaneously to be transferred into discharge collector 58.Similarly, the path 82 of key position setting be disposed among the every latch plate 16c and between the lateral shift planar section 83 so that oxidant can flow through collector part 56 and flow on the required minus plate 22 until discharging at port 72 places that discharge collector 58.Should be appreciated that except path alignment so as with hole 62 and 72 rather than with 64 and 74 are communicated with, the port by latch plate 16c with combine Fig. 3 in positive plate 16a shown in port similar.
At last, continue, with in more detail to being described by the coolant fluid port that spring seals 16a, 16c arrive positive plate 20 and minus plate 22 from supply header aperture 64 referring to Fig. 1 and further referring to Fig. 5.Cooling agent enters fuel cell pack 10 by hole 64.As shown in the figure, be disposed among every latch plate 16a, the 16c and (as shown by arrow C) arrives required positive plate 20 and minus plates 22 by collector part 56 so that cooling agent can flow between lateral shift planar section 81 and 83 at the path 84 of key position setting.
The supply or the inlet flow of fluid that enter in the fuel cell pack 10 have been described above especially in detail.Those skilled in the art will readily recognize that, complementary spring seals configuration of the present invention is included in the similar complementary spring seals configuration that is used for discharging from fuel cell pack 10 gas reactants and cooling agent on the discharge edge 58 of fuel cell pack 10.Therefore, by using above-mentioned spring seals configuration 16a, 16c, the present invention efficiently the carrier gas reactant and cooling agent enters, by and leave fuel cell pack 10.
Those skilled in the art can recognize now from the foregoing description, can implement broad teachings of the present invention in a variety of forms.Therefore, although invention has been described in conjunction with instantiation of the present invention, but true scope of the present invention should so not limit, this be because those skilled in the art after accompanying drawing, specification and following claim are studied with other modification of easy to understand.
Claims (29)
1, a proton exchanging film fuel battery comprises:
Be used to guide the minus plate of first fluid along its Surface runoff;
Be used to guide the positive plate of second fluid along its Surface runoff;
Along the membrane electrode assembly that first direction is orientated, described membrane electrode assembly has anode surface relative with described positive plate and the cathode plane relative with described minus plate;
Have first header aperture that is orientated along second direction and the panel edges of second header aperture, described second direction is perpendicular to described first direction;
Be arranged on first seal between described positive plate and the described membrane electrode assembly, described first seal limits the first fluid communication path between described first header aperture and the described positive plate; With
Be arranged on second seal between described minus plate and the described membrane electrode assembly, described second seal limits second fluid communication path between described second header aperture and the described minus plate, and described first seal and described second seal allow described first fluid and described second fluid to flow through wherein respective via along the direction that is parallel to described first direction.
2, Proton Exchange Membrane Fuel Cells according to claim 1, wherein said first seal and described second seal comprise rigid metallic material.
3, Proton Exchange Membrane Fuel Cells according to claim 2, wherein said first seal and described second seal comprise stamped metal.
4, Proton Exchange Membrane Fuel Cells according to claim 3 is coated with elastomeric material on wherein said first seal and described second seal.
5, Proton Exchange Membrane Fuel Cells according to claim 1, wherein said positive plate and described minus plate are atresias in described first header aperture of described panel edges and the inboard of described second header aperture.
6, Proton Exchange Membrane Fuel Cells according to claim 1, wherein said first seal and described second seal comprise and are parallel to that described first direction is orientated and the mid portion adjacent with described membrane electrode assembly and be parallel to the outer end that described first direction was orientated and existed from described mid portion certain deviation.
7, Proton Exchange Membrane Fuel Cells according to claim 6, wherein said first seal further comprises the sloping portion that described mid portion is linked to each other with described outer end with described second seal, and described sloping portion has the described path that forms thereon.
8, a kind of seal arrangement that is used to guide fluid to flow to the suitable membrane electrode assembly face that is limited between positive plate and the minus plate from the collector of Proton Exchange Membrane Fuel Cells, described seal arrangement comprises:
Be arranged on first seal between described positive plate and the described membrane electrode assembly, described first seal limits first fluid supply orifice in the described collector and the first fluid communication path between the described positive plate;
Be arranged on second seal between described minus plate and the described membrane electrode assembly, described second seal limits second fluid feed hole in the described collector and second fluid communication path between the described minus plate, and described first seal and described second seal allow described first fluid and described second fluid to flow through respective via on it along the direction that is parallel to the surface of described membrane electrode assembly.
9, Proton Exchange Membrane Fuel Cells according to claim 8, wherein said first seal and described second seal comprise rigid metallic material.
10, Proton Exchange Membrane Fuel Cells according to claim 9, wherein said first seal and described second seal comprise stamped metal.
11, Proton Exchange Membrane Fuel Cells according to claim 10 is coated with elastomeric material on wherein said first seal and described second seal.
12, Proton Exchange Membrane Fuel Cells according to claim 8, wherein said first seal and described second seal comprise that mid portion that the described surface that is parallel to described membrane electrode assembly is orientated and is adjacent and the described surface that is parallel to described membrane electrode assembly are orientated and exist from described mid portion the outer end of certain deviation.
13, Proton Exchange Membrane Fuel Cells according to claim 12, wherein said first seal further comprises the sloping portion that described mid portion is linked to each other with described outer end with described second seal, and described sloping portion has the described path that forms thereon.
14, a proton exchanging film fuel battery comprises:
Be used to guide the minus plate of first fluid along its Surface runoff;
Be used to guide the positive plate of second fluid along its Surface runoff;
The membrane electrode assembly that is orientated in the plane, described membrane electrode assembly have anode surface relative with described positive plate and the cathode plane relative with described minus plate;
The collector that is orientated perpendicular to described plane with first header aperture and second header aperture;
Be arranged on first rigid seal between described positive plate and the described membrane electrode assembly, described first seal has and is parallel to the planar section that extend on described plane, described planar section has the Offset portion that is arranged on the stream that limits described first fluid therebetween, and described Offset portion provides the degree of depth that described first seal makes described planar section lateral shift; With
Be arranged on second rigid seal between described minus plate and the described membrane electrode assembly, described second seal has and is parallel to the planar section that extend on described plane, described planar section has the Offset portion that is arranged on the stream that limits described second fluid therebetween, and described Offset portion provides the degree of depth that described second seal makes described planar section lateral shift.
15, Proton Exchange Membrane Fuel Cells according to claim 14, wherein said first seal and described second seal comprise rigid metallic material.
16, Proton Exchange Membrane Fuel Cells according to claim 15, wherein said first seal and described second seal comprise stamped metal.
17, Proton Exchange Membrane Fuel Cells according to claim 16 is coated with elastomeric material on wherein said first seal and described second seal.
18, Proton Exchange Membrane Fuel Cells according to claim 14, wherein said positive plate and described minus plate are atresias in described first header aperture of described collector and the inboard of described second header aperture.
19, a proton exchanging film fuel battery comprises:
Be used to guide the demarcation strip that first fluid is mobile along its first surface and guide second fluid to flow along its opposing second surface;
Along first membrane electrode assembly that first direction is orientated, described first membrane electrode assembly has the anode surface relative with the described first surface of described demarcation strip;
Have the panel edges of first header aperture that is orientated along second direction, described second direction is perpendicular to described first direction; With
Be arranged on first seal between described demarcation strip and described first membrane electrode assembly, described first seal limits the first fluid communication path between the described first surface of described first header aperture and described demarcation strip, and described first seal allows described first fluid to flow through wherein path along the direction that is parallel to described first direction.
20, demarcation strip according to claim 19 further comprises:
Along second membrane electrode assembly that described first direction is orientated, described second membrane electrode assembly has the cathode plane relative with the described second surface of described demarcation strip;
Second header aperture that is orientated in the described second direction in described panel edges upper edge; With
Be arranged on second seal between described demarcation strip and described second membrane electrode assembly, described second seal limits second fluid communication path between the described second surface of described second header aperture and described demarcation strip, and described second seal allows described second fluid to flow through wherein path along the direction that is parallel to described first direction.
21, Proton Exchange Membrane Fuel Cells according to claim 20, wherein said first seal and described second seal comprise rigid metallic material.
22, Proton Exchange Membrane Fuel Cells according to claim 21, wherein said first seal and described second seal comprise stamped metal.
23, Proton Exchange Membrane Fuel Cells according to claim 22 is coated with elastomeric material on wherein said first seal and described second seal.
24, Proton Exchange Membrane Fuel Cells according to claim 20, wherein said first seal and described second seal comprise and are parallel to that described first direction is orientated and adjacent with described second membrane electrode assembly with described first membrane electrode assembly respectively mid portion and be parallel to the outer end that described first direction was orientated and existed from described mid portion certain deviation.
25, Proton Exchange Membrane Fuel Cells according to claim 24, wherein said first seal further comprises the sloping portion that described mid portion is linked to each other with described outer end with described second seal, and described sloping portion has the described path that forms respectively thereon.
26, a kind of method of making the seal of implementing with fuel cell pack, described method comprises:
The metal sheet that limits the plane is provided;
Along the hole being arranged in pre-position on the described metal sheet perpendicular to the first direction on described plane; And
Make the described metal sheet of part produce skew, the described hole of the stream of the reaction-ure fluid by limiting described fuel cell pack manifests path thus; The orientation of described path is parallel to described plane.
27, method according to claim 26 further is included as described metal sheet and applies submissive material.
28, method according to claim 27 further is included as described metal sheet coating elastomer material.
29, method according to claim 26, wherein said deposition step comprise carries out punching press to described metal sheet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/703,237 | 2003-11-07 | ||
| US10/703,237 US7186476B2 (en) | 2003-11-07 | 2003-11-07 | One piece bipolar plate with spring seals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1875515A true CN1875515A (en) | 2006-12-06 |
Family
ID=34551845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004800327272A Pending CN1875515A (en) | 2003-11-07 | 2004-10-07 | One piece bipolar plate with spring seals |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7186476B2 (en) |
| JP (1) | JP2007511045A (en) |
| CN (1) | CN1875515A (en) |
| CA (1) | CA2542355C (en) |
| DE (1) | DE112004002108B4 (en) |
| WO (1) | WO2005048374A2 (en) |
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| CN101752587A (en) * | 2008-12-04 | 2010-06-23 | 上海空间电源研究所 | Preparation method for integrated fuel battery of metal bipolar plate and sealing piece |
| CN104813527A (en) * | 2012-10-30 | 2015-07-29 | 米其林集团总公司 | Bipolar plate for a fuel cell |
| CN108352545A (en) * | 2015-09-30 | 2018-07-31 | 智慧能量有限公司 | Fuel cell subassemblies |
| CN109524686A (en) * | 2018-12-05 | 2019-03-26 | 国家电投集团氢能科技发展有限公司 | Fuel cell separator part, individual fuel cells, fuel cell pile and pole plate |
| CN112385064A (en) * | 2018-07-05 | 2021-02-19 | Eh集团工程公司 | Fuel cell |
| CN114375516A (en) * | 2019-06-17 | 2022-04-19 | 森碧欧 | Proton exchange membrane fuel cell |
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| US10358587B2 (en) | 2016-02-09 | 2019-07-23 | Gm Global Technology Operations Llc. | Seal material with latent adhesive properties and a method of sealing fuel cell components with same |
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| JPH084008B2 (en) * | 1986-08-21 | 1996-01-17 | 石川島播磨重工業株式会社 | Separator for fuel cell |
| JPH07201353A (en) * | 1993-11-29 | 1995-08-04 | Toshiba Corp | Fuel cell |
| US5863671A (en) * | 1994-10-12 | 1999-01-26 | H Power Corporation | Plastic platelet fuel cells employing integrated fluid management |
| JPH11283637A (en) * | 1998-03-27 | 1999-10-15 | Denso Corp | Fuel cell |
| JP3646770B2 (en) * | 1998-07-27 | 2005-05-11 | Ｎｏｋ株式会社 | Gasket for fuel cell |
| JP4066117B2 (en) * | 1999-06-11 | 2008-03-26 | Ｎｏｋ株式会社 | Gasket for fuel cell |
| JP2001146971A (en) * | 1999-10-01 | 2001-05-29 | Nok Corp | Gasket |
| JP2001199002A (en) * | 2000-01-21 | 2001-07-24 | Mitsubishi Plastics Ind Ltd | Elastic rubber coated metal composite and method of manufacturing the sme |
| JP2001310421A (en) * | 2000-04-27 | 2001-11-06 | Mitsubishi Plastics Ind Ltd | Composite coated with elastic rubber |
| US6503653B2 (en) * | 2001-02-23 | 2003-01-07 | General Motors Corporation | Stamped bipolar plate for PEM fuel cell stack |
| JP3830766B2 (en) * | 2001-03-09 | 2006-10-11 | 本田技研工業株式会社 | Fuel cell and fuel cell stack |
| US6599653B1 (en) * | 2001-05-15 | 2003-07-29 | Dana Corporation | Molded fuel cell plates with seals |
| JP3830805B2 (en) * | 2001-11-07 | 2006-10-11 | 本田技研工業株式会社 | Fuel cell |
-
2003
- 2003-11-07 US US10/703,237 patent/US7186476B2/en active Active
-
2004
- 2004-10-07 WO PCT/US2004/032979 patent/WO2005048374A2/en active Application Filing
- 2004-10-07 JP JP2006538026A patent/JP2007511045A/en active Pending
- 2004-10-07 CA CA002542355A patent/CA2542355C/en not_active Expired - Fee Related
- 2004-10-07 DE DE112004002108T patent/DE112004002108B4/en active Active
- 2004-10-07 CN CNA2004800327272A patent/CN1875515A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752587A (en) * | 2008-12-04 | 2010-06-23 | 上海空间电源研究所 | Preparation method for integrated fuel battery of metal bipolar plate and sealing piece |
| CN104813527A (en) * | 2012-10-30 | 2015-07-29 | 米其林集团总公司 | Bipolar plate for a fuel cell |
| CN104813527B (en) * | 2012-10-30 | 2018-08-10 | 米其林集团总公司 | Bipolar plates for fuel cell |
| CN108352545A (en) * | 2015-09-30 | 2018-07-31 | 智慧能量有限公司 | Fuel cell subassemblies |
| CN108352545B (en) * | 2015-09-30 | 2021-02-26 | 智慧能量有限公司 | Fuel cell sub-assembly |
| CN112385064A (en) * | 2018-07-05 | 2021-02-19 | Eh集团工程公司 | Fuel cell |
| CN109524686A (en) * | 2018-12-05 | 2019-03-26 | 国家电投集团氢能科技发展有限公司 | Fuel cell separator part, individual fuel cells, fuel cell pile and pole plate |
| CN109524686B (en) * | 2018-12-05 | 2024-03-12 | 国家电投集团氢能科技发展有限公司 | Fuel cell separator, unit fuel cell, fuel cell stack, and electrode plate |
| CN114375516A (en) * | 2019-06-17 | 2022-04-19 | 森碧欧 | Proton exchange membrane fuel cell |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112004002108T5 (en) | 2008-03-27 |
| US20050100775A1 (en) | 2005-05-12 |
| CA2542355A1 (en) | 2005-05-26 |
| US7186476B2 (en) | 2007-03-06 |
| JP2007511045A (en) | 2007-04-26 |
| WO2005048374A3 (en) | 2006-05-11 |
| WO2005048374A2 (en) | 2005-05-26 |
| CA2542355C (en) | 2009-10-06 |
| DE112004002108B4 (en) | 2013-03-07 |
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